Collaboration Tools and smart use of Google by Kaas & Mulvad.
As Kaas & Mulvad illustrate, collaboration with Google tools can be quite effective.
However, my attention was caught by the last sentence of their first paragraph:
Google Drive makes sharing your files simple. It also allows multiple people to edit the same file, allowing for real-time collaboration. But be aware – don’t share anything in Google, you want to keep secret. (emphasis added)
Pippa Middleton would tell you the same advice applies to the iCloud.